/*
 * Copyright (c) 2016 Network New Technologies Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.networknt.traceability;

import com.networknt.client.Http2Client;
import com.networknt.exception.ClientException;
import com.networknt.httpstring.HttpStringConstants;
import io.undertow.Handlers;
import io.undertow.Undertow;
import io.undertow.client.*;
import io.undertow.server.HttpHandler;
import io.undertow.server.RoutingHandler;
import io.undertow.util.Headers;
import io.undertow.util.Methods;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xnio.IoUtils;
import org.xnio.OptionMap;

import java.net.URI;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;


/**
 * Created by steve on 23/09/16.
 */
public class TraceabilityHandlerTest {
//    static final Logger logger = LoggerFactory.getLogger(TraceabilityHandlerTest.class);
//
//    static Undertow server = null;
//
//    @BeforeClass
//    public static void setUp() {
//        if(server == null) {
//            logger.info("starting server");
//            HttpHandler handler = getTestHandler();
//            TraceabilityHandler traceabilityHandler = new TraceabilityHandler();
//            traceabilityHandler.setNext(handler);
//            handler = traceabilityHandler;
//            server = Undertow.builder()
//                    .addHttpListener(7080, "localhost")
//                    .setHandler(handler)
//                    .build();
//            server.start();
//        }
//    }
//
//    @AfterClass
//    public static void tearDown() throws Exception {
//        if(server != null) {
//            try {
//                Thread.sleep(100);
//            } catch (InterruptedException ignored) {
//
//            }
//            server.stop();
//            logger.info("The server is stopped.");
//        }
//    }
//
//    static RoutingHandler getTestHandler() {
//        return Handlers.routing()
//                .add(Methods.GET, "/get", exchange -> exchange.getResponseSender().send("get"))
//                .add(Methods.POST, "/post", exchange -> exchange.getResponseSender().send("post"));
//    }
//
//    @Test
//    public void testGetWithTid() throws Exception {
//        final Http2Client client = Http2Client.getInstance();
//        final CountDownLatch latch = new CountDownLatch(1);
//        final ClientConnection connection;
//        try {
//            connection = client.connect(new URI("http://localhost:7080"), Http2Client.WORKER, Http2Client.SSL, Http2Client.BUFFER_POOL, OptionMap.EMPTY).get();
//        } catch (Exception e) {
//            throw new ClientException(e);
//        }
//        final AtomicReference<ClientResponse> reference = new AtomicReference<>();
//        try {
//            ClientRequest request = new ClientRequest().setPath("/get").setMethod(Methods.GET);
//            request.getRequestHeaders().put(Headers.HOST, "localhost");
//            request.getRequestHeaders().put(HttpStringConstants.TRACEABILITY_ID, "12345");
//            connection.sendRequest(request, client.createClientCallback(reference, latch));
//            latch.await();
//        } catch (Exception e) {
//            logger.error("Exception: ", e);
//            throw new ClientException(e);
//        } finally {
//            IoUtils.safeClose(connection);
//        }
//        int statusCode = reference.get().getResponseCode();
//        Assert.assertEquals(200, statusCode);
//        if(statusCode == 200) {
//            String body = reference.get().getAttachment(Http2Client.RESPONSE_BODY);
//            Assert.assertNotNull(body);
//            Assert.assertEquals("get", body);
//            String tid = reference.get().getResponseHeaders().getFirst(HttpStringConstants.TRACEABILITY_ID);
//            Assert.assertEquals("12345", tid);
//        }
//    }
//
//    @Test
//    public void testGetWithoutTid() throws Exception {
//        final Http2Client client = Http2Client.getInstance();
//        final CountDownLatch latch = new CountDownLatch(1);
//        final ClientConnection connection;
//        try {
//            connection = client.connect(new URI("http://localhost:7080"), Http2Client.WORKER, Http2Client.SSL, Http2Client.BUFFER_POOL, OptionMap.EMPTY).get();
//        } catch (Exception e) {
//            throw new ClientException(e);
//        }
//        final AtomicReference<ClientResponse> reference = new AtomicReference<>();
//        try {
//            ClientRequest request = new ClientRequest().setPath("/get").setMethod(Methods.GET);
//            request.getRequestHeaders().put(Headers.HOST, "localhost");
//            //request.getRequestHeaders().put(Constants.TRACEABILITY_ID, "12345");
//            connection.sendRequest(request, client.createClientCallback(reference, latch));
//            latch.await();
//        } catch (Exception e) {
//            logger.error("Exception: ", e);
//            throw new ClientException(e);
//        } finally {
//            IoUtils.safeClose(connection);
//        }
//        int statusCode = reference.get().getResponseCode();
//        Assert.assertEquals(200, statusCode);
//        if(statusCode == 200) {
//            String body = reference.get().getAttachment(Http2Client.RESPONSE_BODY);
//            Assert.assertNotNull(body);
//            Assert.assertEquals("get", body);
//            String tid = reference.get().getResponseHeaders().getFirst(HttpStringConstants.TRACEABILITY_ID);
//            Assert.assertNull(tid);
//        }
//    }
//
//    @Test
//    public void testPostWithTid() throws Exception {
//        final AtomicReference<ClientResponse> reference = new AtomicReference<>();
//        final Http2Client client = Http2Client.getInstance();
//        final CountDownLatch latch = new CountDownLatch(1);
//        final ClientConnection connection;
//        try {
//            connection = client.connect(new URI("http://localhost:7080"), Http2Client.WORKER, Http2Client.SSL, Http2Client.BUFFER_POOL, OptionMap.EMPTY).get();
//        } catch (Exception e) {
//            throw new ClientException(e);
//        }
//
//        try {
//            String post = "post";
//            connection.getIoThread().execute(new Runnable() {
//                @Override
//                public void run() {
//                    final ClientRequest request = new ClientRequest().setMethod(Methods.POST).setPath("/post");
//                    request.getRequestHeaders().put(Headers.HOST, "localhost");
//                    request.getRequestHeaders().put(Headers.CONTENT_TYPE, "application/json");
//                    request.getRequestHeaders().put(HttpStringConstants.TRACEABILITY_ID, "12345");
//                    request.getRequestHeaders().put(Headers.TRANSFER_ENCODING, "chunked");
//                    connection.sendRequest(request, client.createClientCallback(reference, latch, post));
//                }
//            });
//
//            latch.await(10, TimeUnit.SECONDS);
//        } catch (Exception e) {
//            logger.error("IOException: ", e);
//            throw new ClientException(e);
//        } finally {
//            IoUtils.safeClose(connection);
//        }
//        int statusCode = reference.get().getResponseCode();
//        Assert.assertEquals(200, statusCode);
//        if(statusCode == 200) {
//            String body = reference.get().getAttachment(Http2Client.RESPONSE_BODY);
//            Assert.assertNotNull(body);
//            Assert.assertEquals("post", body);
//            String tid = reference.get().getResponseHeaders().getFirst(HttpStringConstants.TRACEABILITY_ID);
//            Assert.assertEquals("12345", tid);
//        }
//    }
}
